Giới thiệu Tai Nghe Bịt Tai Giảm Tiếng Ồn Gấp Được 1 Cái 3m 1436 23db Nrr
1Pc 3M 1436 Soundproof Earmuffs Foldable Noise Reduction Earmuffs 23dB NRR Comfortable for Sleeping Work Travel & Loud Events Soundproof
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Features: * Suitable for sleeping, working, loud events, commercial buildings, design and construction, heavy infrastructure and industrial maintenance. * Strong, wide headband provides low pressure and secure fit. Contoured foam filled cushions provide better slip resistance, reliable seal and remain soft over time. * There are dense gaps in the sound absorbing sponge, which are gradually weakened as the sound passes through these gaps. * Foldable design for easy storage, adjustable headband for different head shape. * NRR is up to 23dB.